H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 9/02 (2006.01)
Patent
CA 2451778
The present invention relates to a method for shielding, the magnetic field generated by an electrical power transmission line comprising at least one electrical cable. This method comprises the provision of a magnetic shield in a position radially external to said at least one electrical cable, said magnetic shield comprising at least one pair of shielding layers made from different ferromagnetic materials, radially superimposed and having their maximum relative magnetic permeability increasing in a radial direction from the inside towards the outside of said magnetic shield. The present invention also relates to an electrical power transmission line provided with multiple- layer magnetic shield, and a multiple-layer magnetic shield.
L'invention concerne un procédé permettant de blinder le champ magnétique créé par une ligne de transmission électrique comprenant au moins un câble électrique. Ce procédé consiste à fournir un blindage magnétique dans une position radialement externe par rapport audit câble électrique. Le blindage magnétique comporte au moins deux couches de blindage à base de différents matériaux ferromagnétiques, superposées de manière radiale, leur perméabilité magnétique relative maximale augmentant dans une direction radiale allant de l'intérieur vers l'extérieur dudit blindage magnétique. L'invention concerne en outre une ligne de transmission électrique équipée d'un blindage magnétique multicouche, ainsi qu'un blindage magnétique multicouche.
Donazzi Fabrizio
Dubitsky Yuri A.
Kasimov Robert S.
Maioli Paolo
Petinov Vladimir I.
Kirby Eades Gale Baker
Pirelli & C. S.p.a.
Prysmian Cavi E. Sistemi Energia S.r.l.
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